Subject: Re: [linux-audio-dev] Performance problems caused by dlopen()
From: nick (nixx_AT_nixx.org.uk)
Date: Sun Oct 06 2002 - 00:30:27 EEST
I keep hearing about how aligning XXX on XX boundaries (or similar)
gives huge performance increases etc..
Where's a good place to start finding out about these techniques?
-Nick
On Sat, 2002-10-05 at 18:37, Steve Harris wrote:
> On Sat, Oct 05, 2002 at 12:19:04 +0200, Anders Torger wrote:
> > Uhh... it seems to be totally unrelated to anything... just some
> > spurious cache problem, sometimes, if the code is executed in a
> > particular order, the memory layout is beneficial, sometimes it is not.
> > dlopen seems to have nothing to do with it. I just have to live with
> > it...
>
> Yeah, I've seen this. If you look around on the web there is some code for
> cache aligning in x86's - I've never tried it though.
>
> In the last plugin I was writing I got a huge perfomance increase by
> increasing the size of a ringbuffer, of course that was only in one host.
>
> - Steve
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